Service-Aware Cell Selection Parameters for Wireless Coverage
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Solution Overview
Problem
Conventional cell selection parameters fail to match the service rate requirements of terminal devices, leading to suboptimal communication quality and reduced network coverage, particularly in diverse scenarios like M2M networks where service rates vary widely.
Innovation Solution
A network device determines and sends groups of cell selection parameters associated with service information, allowing terminal devices to select suitable cells based on their service requirements, ensuring higher signal quality for high-rate services and lower quality for low-rate services, thereby expanding coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single cell selection parameter is used for all terminal devices, then the configuration is simple and easy to manage, but the cell selection parameter cannot match the diverse service rate requirements of different terminal devices, leading to suboptimal communication quality
Solution Approach 1:
The patent segments the cell selection parameters into multiple groups, where each group corresponds to a specific service rate requirement. Terminal devices can select the appropriate parameter group based on their service needs, thereby achieving adaptability without requiring a completely complex configuration system. This segmentation allows the network to provide differentiated parameters for different service scenarios while maintaining manageable complexity through structured organization.
Solution Approach 2:
The patent changes the cell selection parameters based on service rate requirements. Different parameter groups contain different threshold values and configuration settings that are optimized for specific service rates. This parameter variation enables the system to adapt to diverse terminal device requirements while the network maintains control over the complexity through centralized parameter management and standardized parameter groups.
2Reliability
If a high cell selection parameter threshold is set to ensure high-rate service quality, then communication quality for high-rate services is improved, but terminal devices with low-rate services cannot camp on cells, reducing network coverage
Solution Approach 1:
The patent applies local quality by providing different cell selection parameters tailored to specific service rate requirements. High-rate services receive parameter groups with higher quality thresholds to ensure communication reliability, while low-rate services receive parameter groups with lower thresholds that allow camping on cells with weaker signal conditions. This localized optimization ensures that each service type gets the appropriate quality level without one service type negatively impacting another.
3Area of stationary object
If a low cell selection parameter threshold is set to expand network coverage, then more terminal devices can camp on cells, but the communication quality for high-rate services deteriorates
Solution Approach 1:
The patent resolves this contradiction by implementing local quality through service-specific parameter groups. Cells can have multiple parameter groups associated with them, each optimized for different service rates. Terminal devices selecting parameter groups appropriate to their service requirements ensure that high-rate services only camp on cells meeting their quality thresholds, while low-rate services can access cells with lower signal conditions, thereby expanding coverage without compromising high-rate service quality.
4Adaptability or versatility
If multiple cell selection parameter groups are provided for different service rates, then the cell selection parameter can match service rate requirements, but the signaling overhead and complexity of parameter management increase
Solution Approach 1:
The patent applies universality by designing parameter groups that can serve multiple purposes. Each parameter group is structured to be universally applicable across different terminal devices with similar service rate requirements. The network can broadcast these parameter groups in a standardized format that terminal devices can efficiently process. This multi-functional design reduces signaling overhead by avoiding redundant parameter transmissions and enables efficient matching between terminal devices and appropriate parameter groups based on their service requirements.
Data Source
AI summary
This application relates to the field of wireless communication, and in particular, to cell selection and cell reselection in a wireless communication system, and provides a communication method, apparatus, and system, to resolve a problem in a conventional technology that a cell selection parameter cannot match a requirement of a service rate supported by a terminal, thereby improving communication quality. The method includes: A network device determines one or more groups of values of a cell selection parameter, where there is an association relationship between the one or more groups of values of the cell selection parameter and one or more pieces of service information; and the network device sends the one or more groups of values of the cell selection parameter.